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These plain form hydrometers measure the relative density (specific gravity) of oil and petroleum re...
H-B DURAC API Plain Form Hydrometers; Traceable to NIST 11 results
Safe-Lab™ solid Teflon® PTFE plastic stopper with threaded polypropylene extracting nut is easily re...
Safe-Lab Teflon PTFE Stoppers for Tapered Joints 8 results
Thermometer-Hygrometer analog clocks feature plastic casing and white dial face. Humidity range 0/10...
H-B DURAC Thermometer-Hygrometer Clocks 4 results
Multi-function clocks feature a stainless steel case, thermometer and 0.1 resolution, and are 12" in...
H-B DURAC Multi-Function Digital Clocks 4 results

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